Improvement in sewing-machines



PATENT OFFICE;

GREENLEAF STAGKPOLE, JR., OF liliLSWORlll', hir/UX ll.

IMPRVEMENT iN SEWlNG-MACHlNES.

Specification forming part'of Letters Patent l\'o.45,27, dated Nevemher Sil, 1R64; ante-dated September 17, 1863.

To alt ilftont it may concern:

-e it known that I, GREENLEAF STACK- loLE, Jr.,-a citizen ot' the United States ot' llinerea, and a resident of Ellsworth, in the county ct' Hancock and State of Maine, have made a new and useful invention having reference to machinery forsewing cloth or other mate and l do hereby declare the said in'- en-tiea to be fully described in the following` specification and represented in the acconr panying drawings, of'which- Figures land 2 exhibit sile elevations offit; Fig. 3, an under side view ot' it. Figs and 5 are end views vof it; Fig. 6, a longitudinal section et it, and 7' atop view et it.

The nature ot' my invention consists in the combination of a sewing-machine for making, (inclothor other material,) with two threads,- lone row or line ot' sewing, with auxiliary machinery for` simultaneously making, with. two threads', another parallel row ot sewing in the said cloth or material, the whole being` suhstantially as hereinafter described; also, in the combination of the said auxiliary sewing,` machinery with the said main sewing-machine in such manner and by such means as to en ahle the two to he adjusted relatively to one another in order to make the two lines ot' sewing either 'nearer to or farther apart from one another as circumstances may require; also, in4 the combination et' the said auxiliary sewing machinery with the said main sewing-machine in manner and by such means that the auxiliary sewing machinery shall he put in operation by the mechanism which serves to operate the corresponding parts otthe main sewingniachine; also, in the combination ot' a clothhridge and needle-guide with the main and auxiliary sewing-machine.

.In the said drawings, A denotes the trame ot the main sewing-machine, ot'. which a is the arm or neck which supports the needlecarrier and the cloth-presser t), the needle ot' the said carrier being exhibited at D.

The feedingl apli'aratus o the machine eonsists ot' a spurred endless heit, E, which traverses around two pulleys, F (i. Unc et these pulle `vsviz., that,- nmrked G-is fixed upon a horizontal sli-uit, ll', so as to rotate with4 the said shaft. rlhe other pulley, l?, turns freely Figs. 6 and 7.)

on another shalt, l, arranged as shown inthe drawings. The drivin g-shaft ot' the machine is exhibited at K. It carries/or has fixed upon it a grooved cam, L, which serves to operate a bent lever, M, which extends to and gives motion tothe needlecarrier B. On the inncrcnd ot the shaft K is a crank, N, which, hy ineens of a connecting-rod, O, (see Fig. 3,) serves to impart motion to a shuttle-driver, l. (See The said shuttle-driver P act-- uates a shuttle', 5, which is to he moved horizontallyl audt-ransversely ot' the machine, and to operate in connection with the needle, in a manner substantially like that of au ordinary needlefandshuttlesewing-machine. lhedriv-v ing-shaft K also carries another cam, S, which rests and serves to elevate a lever, which projects fro'm'anotlier horizontal shat`tU, arranged as shown in 'Figs.12, 3,5, and `6. spring, D2, serves vto depress the lever 'lf and maintain'fit vin contactwith the periphery of the cam S.- During each full rotation of the driving-shaft K reciprocating movements will 'be imparted to the shaft U and a crank, NV, arranged on its-outer end, as shown 1n Furs?,

and 5. rthis crank, by'means ci' a connecting*- rod, H2, actuatesy apawl-arrn, Y', which extends t'rom and turns freely on. the shaft H, hereiuhet'ore mentioned.` A'llle said pawl-arln carries `two impelling` pawls, dd, which act in conjunction with a ratchet, c, fixed upon the shalt. By the action et' the pawls on the said ratchet c intcrmittei-lt motions will he. iniparted to the shat't lll and the feeding-holt E.

pal parts ot the said auxiliary sewingl machinery consists ot' a needle, D', a needlecarrier, a feeding-belt, E', a cloth-presser, C', and a shuttle, lt', and its driver l, they being n n ranged with reference to the main sewiiig-anal chines as shown in the,dra\viiigs,'ai1d vto be rlhe princi.

.Sewing machine.

actuated in manner as hereinafter described. ting the platform e2 to move freely without dis- The auxiliary needle-carrier B and its presser C( are supported by a case or frame, a', which is arranged parallel to aii'daeirectly. in front of the frontend of the arm-a, and is att-ached to one end of a bar, u?, which runs through a guide, b2, and is fastened to an upright post, c2.- -Ihis latter projectsiipward from a yoke, d?, that is arranged horizontally on the table ot' the main sewing-machine, and connects with a platform or frame, e2, which is separate from and 1s supported by the table ofthe said main raceway f2, which supports the auxiliary shuttle-driver P.

In order that the auxiliary needle-carrier B may have movements correspon din g with those ofthe primary needle-carrier I an arm, g2, is extended horizontally from the upper-part of the needle-carrierBand directly through a corresponding niortise or hole made through the auxiliary needle-carrier B.- Furthermore, in'

order that the auxiliary feeding-belt E may move in correspondence with theprimary feedin g-belt E, the driving-pulley G of the said auxiliarybeltisplacedupon'theshaftH,and should be connected therewith by what machinists term a feather connection 77--that is, `one .which will not only cause the pulley Gr tf berevolved by the shaft E, but enable the said pulley G( to freely-slide endwise on'the said shaft. grooved pulley, h2, is affixed to cthe side of the driving-pulley G', and has an arni, i2, (see Fig. 7,) extending into its groove and being projected from' the yoke d. The pulley F', which turnsfreel y on the shaftI, has a similar grooved pulley, h, and an arm, i3. These arms f2 i3 and grooved pulleys h2 h3 serve t0 move the pulleys F" G! in correspondence with any longitudinal movement of the yoke d?. I

From the above it will'be secu that suoli movements ofthe pulleys F and G will move the endless feeding-belt E eitlie.` nearer to or farther from t'hc primary feeding-belt ll.

In orderthat the auxiliarysliuttle-driver P may operate simultaneously with the primary shuttle-driver I), au arm, k, is extended horizontally from the shuttle-driver P directly underneath and across the auxiliary shuttle-driver I and through a groove or moi'tise formed therein. .(Se'e Figs. 3 and 6.)

The movements of the yoke d? are produced by means of an adjiist-ing-screw, Zwhich screws through a standard, m2, extended upward from the said yoke.

The thread for the auxiliary needle DfisV represented iii'A Fig. 1 as passing from an auxiliary bobbin or spool, Z.

A slotted bridge, i3, or'thin andnarrow plate of metal, is fastened at one end to the table or frame A, and extends directly underneath and supports the upper horizontal parts ofthe feedbells E F', as seeirin Fig. 6. The said bridge Lisimply'rests ou the platform c or within a groove made therein to receive it, thus permit- This platform carries the turbiig the bridge i3, and sustaini'n g the endless belts at or near their iniddles. The said bridge i3 gives support to the cloth while it may be resting on the'sad belts. Thobridge Z- is also arranged with-a slot lengthwise in it, and of a width sufficient to receive the two needles and 'give `support to them laterally. Fig. S represents the said bridge in top view, its needle-slot being exhibited atm. "nzaz are covering-plates extending from theplatform such parts'of the machinery as may be desirable to have insulated from the cloth or article to be sewed.

From the aboveit will beseen that by turning the screw Z2 so as to impartinotion to the yoke d? the whole or the main working parts ot' the 'auxiliary sewing machinery may be moved either toward or away from the corresponding working parts of the main sewing- .,be performed at anyl desirable distance apart within such limits as are incident to 4the machine.

I do not claim the simultaneous sewing of two paiallel'linesof zigzag seams any distance apart, for D. C.Ainbler claims that in his patent of November 7,1854. Neitherl do I claim the sewing of two straight lines.ofsewing with two' needles and onev shuttle simultaneously, parallel to each other, witlithree threads connected vtogether underneath, for that .is done by I. M. Sin ger in his patent ol'0ctober 9,1855; but I 1. rlhe combination of a sewing-machine for making in cloth or other material with two ing with auxiliary machinery for simultaneously making withother two threads another and parallel separate and-v distinct straight row of stitches ofsewiug in thesaid elothor material, the whole beingsubstantially a-s above described.l

said auxiliary sewing machinery with the said sewing-machine in vsuch manner and by suoli means as to enable the two shuttles and two needles and their accompanying parts to besiiiiultaiieously adjusted relatively to one another, s o as to cause them to make the two lines of sewing either nearer to or farther apart quire, the whole beiiig `substantially as described. l

end of the cloth-hridge and needle-guide Z3 to the main machine or to the platform ez of the auxiliary machinery, lea-ving the unfastened end free, so that the unfastened end will move easily in the main machine, or the platform e? rfcves easily under the bridge when one'end ol' the bridge is fastened to the main machine, i substantially as above described.

e2 ofthe table A, and serving simply to covery machine, andv thus two-rows ot" sewing may threadsonestraight rowofstitchesorlineofsew- 2. vThe combination or its equivalent of the from one another, as circumttanees may re! 3. The combination and the fastening of one essais .s

4. T he runuingoftwoshubtles simultaneous distance apart., disconnected from eaeh other ly in separate raeeways face' to face and parwhen using co-form the same two shuttles runellel'to each-other, which are adjustable any ning fece to face.

distance apart/.in eonj unetion with the needles7 GREENLEAF STAKPLE7 JR. substantially as herein described. Witnesses:

. 5. The simultaneous runuiugof two seperate FREDERXGK FOX,

.distinct parallel curved lines of sewing any lRVNG W.. PARKER. 

